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3 years ago

A jar contains n nickels and d dimes. There are 31 coins in the jar, and the total value of the coins is $2.10.

Mathematics

1 answer:

tia_tia [17]3 years ago

3 0

Answer:

11 dimes 20 nickels

Step-by-step explanation:

Only combo that makes $2.10

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57°

noname [10]

Answer:

c = 29

Step-by-step explanation:

Law of sines is given as: $\frac{a}{sin(A)} = \frac{b}{sin(B)} = \frac{c}{sin(C)}$

B = 180 - (57 + 44) = 79°

b = 41

C = 44°

c = ?

Thus:

$\frac{b}{sin(B)} = \frac{c}{sin(C)}$

Substitute

$\frac{41}{sin(79)} = \frac{c}{sin(44)}$

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